A Guide to Organic Grain, Meat, Dairy and Fish

Grains
"Like the other food groups, if you have access to organic grains and can afford them, I believe organic is better than conventional and always for the same reason: You're exposing yourself to fewer environmental contaminants with organic," says Dr. Hobbs. Another plus: Most organic grain products are healthy whole grains.

Meat and Dairy
When it comes to animal fats like meat and dairy products, you may want to consider going organic, but limiting your intake of animal fats overall is your healthiest move.

"The higher-fat animal products are also those that deliver the most toxicity to us. I recommend that people eat fewer animal products and opt for lower-fat versions which are less contaminated and are probably better for us anyway," says Dr. Fuhrman.

"For example, instead of foods like cheese and butter, get your fat from healthier sources such as nuts, seeds and avocados." Adds Dr. Hobbs, "If you can afford it, you're better off buying organic meat but at the same time, you should reduce the frequency of meats, regardless of whether they're organic or conventional."

When eating meat, you can cut your chemical exposure by removing as much of the fat as you can since that's where chemicals are likely concentrated, says Holewinski.